Due to it being composed of Uru, the weapon is nigh-indestructible and able to withstand energy blasts created by the Infinity Stones. It is also able to channel dimensional energy and summon the Bifrost Bridge, which enabled Thor to teleport himself, Rocket Raccoon, and Groot to Wakanda.
Stormbreaker has the additional power to summon the Bifröst, allowing Thor to teleport anywhere in the Nine Realms. Screen Rant has identified Stormbreaker as the more powerful of the two, based on this ability, as well as it being a much larger and edged weapon.
Although Stormbreaker and Mjolnir have very similar properties and powers, Stormbreaker is the most powerful weapon wielded by Thor so far. The obvious reasons are that Stormbreaker is the physically larger weapon out of the two, and not to mention that it is an axe, which could well be more dangerous than a hammer.
Is Stormbreaker more powerful than the Infinity Stones?
Thor had the element of surprise and a weapon capable of overpowering even the Infinity Gauntlet. Stormbreaker powered through the gauntlet's energy beam but left Thanos alive long enough to succeed, making his victory in Avengers: Infinity War all the more devastating.
Stormbreaker truly is the most powerful weapon the MCU has ever seen. Not only can it resist the power of all six Infinity Stones, but it also has the potential to tear open entire planets. All Thor would need to do to use that phenomenal power is choose a world, open the Bifrost, and leave it open.
How powerful is Stormbreaker? Stormbreaker History Avengers Endgame
Why can anyone hold Stormbreaker?
Unlike Mjølnir, however, the weapon is not enchanted to prevent those deemed "unworthy" from holding it, making anybody with sufficient strength capable of using the weapon.
Turns out, Thanos was taken unawares. He had just incapacitated all the heroes who tried to stop him. And did not see Thor — or Stormbreaker — coming. Or he could have just changed reality and turned Thor into a puddle of water.
The hammer Stormbreaker is very similar to Mjolnir, made of mystic Uru metal and is nearly indestructible. Worthiness: Just like the original Mjolnir, no one can lift Stormbreaker who is not worthy. After the founding of New Korbin, there was a line of aliens and Korbinites all attempting to lift Stormbreaker.
Bill's been without Stormbreaker for a while now, as, in last year's Thor #3, Thor destroyed the powerful hammer after the pair got into a fight over his decision to join Galactus in a fight against the Black Winter. In a harrowing scene, Thor threw Mjolnir at Bill, which the worthy hero caught.
He was able to lift Stormbreaker because Stormbreaker is purely about strength. In Infinity War, when Thor was asked by the Guardians of the Galaxy, Peter Quill: Don't you think that we should all have a weapon like that?
The movie doesn't explain Thor's motivations for giving up Stormbreaker, but it makes sense that Chris Hemsworth simply wanted Love to have a powerful weapon to aid her in battle. It's unlikely that he could give her Mjolnir, considering that so few people in the MCU have been deemed worthy of its power.
The entire axe was undamaged by the beam from all six Infinity Stones. So the handle was likely enchanted alongside the head of Stormbreaker to be nigh-indestructible as well. After all, like other weapons of Nidavellir, Stormbreaker is a magical weapon.
Storm breaker is meant to be the strongest weapon of Asgard and could even summon bifrost, says Eitri. But there is no enchantment or spell on it like it was on Mjolnir. So one doesn't have to be worthy to weild it, just the strength to lift it. Clearly Thanos is capable of lifting it.
The answer might be two-fold: Captain America is a super-soldier and had the strength to hold Mjolnir before. If holding Stormbreaker is a matter of simple strength, then Captain America wielding it is all the more impressive.
Because it could kill thanos, is more powerful and thor panicked. Had he thought to call Mjolnir thanks would have gone to catch it and it would have knocked thanos on his bottom or something similar. But because thor was reliant on stormbreaker because it was more powerful he did it without thinking.
Both Mjolnir and Stormbreaker were crafted by the Dwarves of Nidavellir, but Mjolnir was enchanted by Odin and Stormbreaker channels the power of the Bifrost. While Mjolnir required the user to be worthy, Stormbreaker simply requires someone who isn't a mortal to wield it.
Thor's hammer Mjolnir was defined by the fact that only the 'worthy' could lift it – so basically no-one except the god of thunder (and Vision, for some reason). But when it comes to the weapon's replacement, Stormbreaker – which Thor forges in Avengers: Infinity War – Groot is able to lift it too.
When Groot sacrificed himself to save his friends in Guardians of the Galaxy, pieces of him were left behind. They were no longer a part of Groot. The same is true with his arm, which is now just an axe handle, and thus doesn't disappear from existence when Groot does.
Stormbreaker survived a full blast from the IG utilizing all of its stones. Actually, not only did it survive, it overpowered it. Unless you think Hela's grip and innate powers is more destructive than all those stones combined then the answer is no, she can't destroy Stormbreaker.
Mjolnir has the enchantment where only those who are worthy can wield it, such as Thor or Captain America. Hulk on the other hand, … while Stormbreaker can be wielded by anyone who has the strength to do so (though it can be summoned by those worthy of Mjolnir like Cap did). Case in point, Thanos.
During a Vudu Viewing Party for Avengers: Infinity War, co-directors Anthony and Joe Russo revealed a key difference between Thor's hammer Mjolnir and his new ax Stormbreaker: the latter doesn't require worthiness. That's why Groot was able to lift the ax, not because he was worthy but because he didn't need to be.
